Caption: Bond Wire: The Grand River Railway's electric traction motors have not plied the rails in 46 years, but the bond wires used to complete the circuit through the rails between the 1500 V trolly wire and the substation (in this case located at Preston, Ontario) are still installed on the old trackage as of 2007. Freight cars until recently used this trackage which has been made redundant by CPR's Wolverton yard.